Valved-outlet equipment for tank cars



Dec. 23,' 1924. 152mm T.` J. ENTWlSL-E ET AL VALVED OUTLET EQUIPMENT FOR TANK CARS Filed July 1, 1922 s sheets-sheet 1 me, 23, 1924. 1,520,285I A T. J. ENTwlsLE ET Al.

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T. J. ENTWISLE ET AL VALVED OTLET EQUIPMENT FOR TANK CARS Filed July l, 1922 5 Sheets-Shea?. 4

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` T. J. ENTWISLE. ET L VALVED OUTLET EQUIPMENT FOR TANK CARA Filed July 1, 1922 5 Sheets-Sheet 5 Patented Dec. 23, 1924i.

UNITED STATES PATENT OFFICE.

THOMAS J. ENTWISLE, HENRY P. OlVIAR-A, AND JOSEPH W. DONNELLY, OF 0R- LEANS, LOUISIANA; SAID DONNELLY AND SAID OMARA ASSIGNORS OF ELEVEN FORTY-EIGHTHS TO SAID ENTWISLE AND ONE-SIXTEENTI-I TO EDWARD L. MAR.-

TIN, OF NEW ORLEANS, LOUISIANA.

VALVED-OUTLET EQUIPMENT FOR- TANK CARS.

Application filed July 1, 1922.

T0 all whom. t may concern.'

Be it known that we, THOMAS J.. ENT- wisLu, HENRY P. OMARA, and Josurrr I DoNNnLLY, citizens of the United States, residing at New Orleans, in the parish of Orleans and State of Louisiana1 have invented new and useful Improvements in Valved-Outlet Equipments for Tank Cars, of which the following is a specification.

One object of our said invention is the provision of a thoroughly practical eiiicient and durable valved outlet equipment designed more especially for the tanks of tank cars and characterized by means for assuring proper seat ou the outlet-control valve before the closure member or dome can be applied-ie., connected with the dome.

Another object of the invention is the provision of a highly advantageous outletcontrol valve and valve casing which are preferably removable with a view to prolonging the usefulness and efficiency of the equipment as a whole.

To the attainment of the foregoing, the invention consists in the improvement as hereinafter described and definitely claimed.

In the accompanying drawings, forming part of this specification Figure 1 is a broken, vertical section, partly in elevation, of so much of a tank car as is necessary to illustrate the best practical embodiment of our present invention of which we are cognizant.

Figure 2 is an enlarged detail view showing the casing of the outlet valve in diametrical section and also showing the said valve and the connections and appurtenances of both.

Figures 3 and i are horizontal sections taken in the planes indicated by the lines and 4-4, respectively, of Figure 1, looking downwardly.

Figure 5 is an enlarged top plan view of the outlet-control valve per se.

Figure 6 is an enlarged inverted plan view of the said element.

Figure 7 is an enlarged intermediate horizontal section through the outlet-control valve taken in the plane indicated by the line 7--7 of Figure 2.

Figure 8 is an enlarged top pla-n view of Serial No. 572,272.

the annulus that constitutes the seat for the outlet-control valve.

Similar numerals designate corresponding parts in all of the views of the drawings.

The tank body of the car is designated by 1, and in the bottom 2 of the same is provided an opening 3. In this opening 3 is arranged the valve casing 4t of our improvement, the said casing 4 being interiorly threaded as designated by 5, Figure 2, and being provided in its lower portion and above the bottom 2 with large side openings 6, preferably tapered or gradually reduced in width upwardly, and designed for the free passage of oil or other mobile substance into the valve casing from the sides of the lower portion thereof. The upper end of the casing 4: is provided with an integral, circumferential flange 7, opposed to the underside of the bottom 2 and riveted or otherwise connected thereto at 8. At a point in the same horizontal plane as the circumferential iiange 7 the casing I is interiorly reduced in diameter and is interiorly threaded as designated by 9. Carried by said casing 4, below the circumferential ange 7 is a pendent interiorly threaded end portion 10 for the threaded connection of the usual outlet leg 11, preferably provided with the usual weakened portion 12, and with the usual cap 13, gasket 14, plug 15, and cap safety-chain connection 1o (not of our invention) shown in Figure l. At 17 the casing has an interior annular iiange, between said flange 17 and the upper end of the 11 is interposed an appropriate gasket 18. An appropriate gasket 19 is superimposed on the iiange 17 and interposed between the same and the metallic annulus 20, Figures 2, 4 and 8, which is in threaded engagement at 9 with the casing 4C and is therefore readily removable when worn or otherwise impaired, The valve-seating portion of the annulus' 20 is designated by 21, and at 22 the annulus is provided with integral, interior lugs for the engagement of an implement employed in turning the annulus into and out of threaded connection with the casing 4.

figures, the said outlet-control valve 23 will be readily understood to be of one piece of appropriate metal and to be made up of a body 24 with a convex face 25, a cruciforni intermediate portion with threads 2'6 on the outer edges of its portion 23, and a socket 29 above said upper portion. The opposed sides of the body 24 and upper portion 2,8 are concave as illustrated to lend ample strength to said body 24 and portion 28 and yet not interfere with the freeV passage of oil or other mobile substance between the webs'27 and downwardly around the periphery of the body 24 when the valve is, raised to the relative position shown in Figure 2. The valve 23 is opened and closed by the turning of the same about its axis with the threads 2'6 on the valve webs 27 in engagement with the thread of thev casing 4, and manifestly the valve may be strongly set against its seat with a view to precluding leakage and yet may be readily opened as l occasion demands.

Disposed in the socket 29 ofthe valve 23 is the lower portionI 30 of a valve rod 31, both socket and portion 30 being preferably of angular cross-section, and the two being. connected together by a pin 3.2. The rod 31g is journaled in and movable vertically through a bracket 33, .fixed to the side wall 34 of a dome on the body l, and arranged above the bracket 33 and s plined to or otherwise appropriately engaged with the rod 3lv is ay hand wheel 35 for the convenient rotation of the rody 3l to open or closethe valve.

, Loosely mounted on the rod 3l, as between two` nuts threaded on the rod is an element 41 which has for its function to effectively prevent thev attachment of a closure element to the threaded ring 42 on the top 43 of the tank dome until the val-ve 23 is completely and tightly closed. The said attachment preventing element 4l is preferably in form -of al bar with` an varm 44 to bear against the dome wall .34 and an farm 45 that is movable vertically through the ring I42. The `said army 45 is so arranged relative to the valve 23 and the valve seat 2O that when the valve is fully closed the arm or projection 45 is lowered to the bottom edge 'of the threaded portion of the ring 42. where. the cover or closure element (not shown) will engage or rest upon said arm or projection when said cover or Iclosure element isz screwed home. From this it fol-- lows that the `said cover or closure element is calculatedto `assist in preventing casual opening fof the valve 23.;A also, that the sai-d cover or "closure ele-ment must be :removed as a condition precedent to the opening of the valve 23 by the turning of the rod 3l, through the medi-um of the wheel 35 or through the medium of any other means for the purpose. Incident to the turning of the rod or stem 3l and the raising and opening of the valve 23, the projection 45 will extend upwardly through and above the ring 42 for the purpose before indicated. The valve 23 is raised inv opening to a considerable extent, and the movement of the projection 45 is considerable, thereby preventing any possible fastening of the cover or closure element until the valve 23 is fully closed. n

The practical essentials of a valved outlet equipment for tank cars, all of which yare manifestly-met to a marked degree by our improvement as herein shown and described may be briefly stated as follows, viz

rlhe valve seat shouldbe independent of the outlet chamber, so that-'if the outlet chamber flange is accidentally torn off the tank,y the contents of the tank will not escape. The construction should be such that the tank may be completely emptiedthrough the valve.,` In order that the valve may not lift from its seat in the event of an accident separating the discharge chamber from the shell, the valve should have no wings or stem projecting below the bottom of the tank. The valve must remain seated under vapor and liquor pressure within the-tank The valve chamber or valve should not distort becauseof the changingucontour of the shell due to lading, expansion or other usual causes. The valve should not tighten on its seat under the vibratory action of the stein. The *design should be such as not to create a tendency to lock or wedge the valve on its seat. It should not be possible to displace the valve on its seat because of the' movement of the car, vibration of the tank or the effect of the movement of Vthe liquid contents of the tank. The design shjould not` permity side-lifting of the valve because of uneven spring tension. The design should not permit displacement of the Y valve through pressure from below. The valve should operatey from the inte-rior of the tank, but in the event lthe rod is carried through the dome,` leaking shall be prevented by packing in stuiling ybox and cap nut. The valve operating gear mustr have means of compensating for variations in the vertical Vdiameter of the tank produced by expansion,"wei;ght.of the liquidcontents, or other usual causes. c

In addition to the practical advantages hereinbefore ascribed to our improvement may be stated the following, viz,:-

The valve seat and. the flange are independent of the outlet chamber. The outlet chamber is capable of being` renewed without removing tank from frame, or Han-ge from tank. Suliifcient area is affordedto permit complete contents of Vcar being emptied. There is unrestricted flow, and noobstruction. Accidental breaking of valve chamber impossible to unseat valve, as no projections extend below outlet flange or bottom of tank. Valve does not depend upon wings or stem to insure proper seating of valve. Valve will remain seated under vapor, and liquid pressure within tank. Valve guide nor valve not liable to distort because of changing contour of shell due to lading, expansion or other usual causes. Valve will not tighten on its seat under vibratory action of stem. Valve so designed as not to create a tendency to lock or Wedge valve on its seat. impossible to displace valve on its seat because of movement of car, vibration of tank or the effect of movement of liquid contents in tank. Valve so designed as to prevent side-lifting because of unevenness in tension. Valve does not depend upon springs or other agencies to insure proper seating. Impossible to displace valve through pressure from below. Not necessary7 to seal outlet cap; valve controlled only by valve stem wheel and then only through dome. Valve operated within tank. Impossible to operate valve without removing dome cover. Valve stem designed for means of compensating for variations in the vertical diameter of tank.

lVe have entered into a detailed description or" the construction and relative arrangement of the parts embraced in the present and preferred embodiment of my invention in order to impart a full, clear and exact understanding of the said embodiment. We do not desire, however, to be understood as confining ourselves to the specific construction and relative arrangement of parts inasmuch as in the future practice of the invention various changes and modifications may be made such as fall within the scope of our invention as defined in our appended claims.

yHaving described our invention, what we claim and desire to secure by Letters-Patent, isz-- l. Valved outlet equipment: for tank cars including a tank body having an outlet in the bottom, an opening in the top of the body, a cover for said opening, a valve controlling said outlet mounted on the bottom, said valve having a plug axially movable in opening` and closing the outlet, an operating rod connected at one end to the plug and extending substantially axially therefrom and terminating in proximity to the opening in the top of the tank body, said operating rod being rotatable in the closing and opening movement of the said body and axially movable therewith, and an arm member mounted on the end of the rod adjacent said opening and adapted to remain stationary in the rotation of the rod, having one end movable through said opening in the axial movement of the rod to prevent application of the cover when the valve is open.

2. A device for preventing application of a cover to a tank car wherein the tank car includes a tank body having an opening in the top to receive a cover, an outlet opening in the bottom below the top opening, valve mounted in the tank body having an axially and substantially movable float controlling the outlet, an operating rod attached to one end of the valve plug and extending upwardly therefrom terminating in proximity to the opening in the top of the tank body, and a bracket for receiving the upper end of said rod; comprising a bar member mounted on and carried by the upper end of said rod, having one end portion projected laterally into the opening in the top of the tank body to prevent application of the cover when the valve is opened, and means on said bar member for preventing the rotation thereof in the rotation of the operating rod.

3. A device for preventing application of a cover to a tank car wherein the tank car includes a tank body having an opening in the top to receive a cover, an outlet opening in the bottom below the top opening, a valve mounted in the tank body having an axially and substantially movable fioat controlling the outlet, an operating rod attached to one end of the valve plug and extending upwardly therefrom terminating in proximity to the opening in the top of the tank body and a bracket for receiving the upper end of said rod; comprising a bar member having the central portion mounted on the upper end of said operating rod for relative rotation thereon, and having a lateral and upstanding projection on one end of said rod extending into the opening in the top of the tank body, for preventing application of the cover when the valve is opened, said rod member having a guide extension thereon at the opposite end for cooperation with a portion of the tank car body, to prevent rotation of the bar member in the opening and closing movement of the valve plugs.

a. A device for preventing application of a cover to a tank car wherein the tank car includes a tank body having an opening in the top to receive a cover, an outlet opening in the bottom below the top opening, a valve mounted in the tank body having an axially and substantially movable fioat controlling the outlet, an operating rod attached to one end of the valve plug and extending upwardly therefrom terminating in proximity to the opening in the top of the tank body, a bracket for receiving the upper end of said rod; comprising a bar member having the central portion mounted on the upper end of the operating rod and provided at one end with an upwardly and substantially llt) right angular: extension. adapted to pvojeet into the opening in the top oi the tank body, said extension beingparallel Wit-li the axis of said. operatingi'ocl and;v movable axially with said rod in the opening and closing movement of the valve plug,l the opposite endlosaid rod beingy providedy wit-ha forked extension having--r lateial'ly extended. termihals adapted for cooperation Wit-h a. portion of the tank bodyY to prevent rotation ofthe 10 bar membels in the rotation of ope-Bawag' rod.

I1i.testimo1iy Whe-reef, We our .signa-ftures.

THQ-MAS J., EN'IVISLE.

l?. OZMfAaRA.. JOS-EPH W. DQNNELLY. 

